Detailed Weather Data for Project: DENI

Date Time TAIR WSPD RELH SRAD 04Mar2018 8 a.m. 57.36 6.93 67.40 17.00 04Mar2018 9 a.m. 58.44 9.07 71.30 66.00 04Mar2018 10 a.m. 59.54 8.77 68.98 62.00 04Mar2018 11 a.m. 60.66 12.27 73.43 153.00 04Mar2018 12 p.m. 61.00 11.31 76.25 151.00 04Mar2018 1 p.m. 61.97 11.55 73.44 184.00 04Mar2018 2 p.m. 62.31 10.32 72.34 156.00 04Mar2018 3 p.m. 59.88 8.16 76.79 91.00 04Mar2018 4 p.m. 60.42 9.82 78.20 67.00 04Mar2018 5 p.m. 59.32 6.05 78.99 46.00 04Mar2018 6 p.m. 58.57 6.96 86.44 8.00 04Mar2018 7 p.m. 56.03 12.39 35.77 1.00 04Mar2018 8 p.m. 58.12 4.40 86.92 0.00 04Mar2018 9 p.m. 58.68 8.42 81.43 0.00 04Mar2018 10 p.m. 58.46 6.64 80.16 0.00 04Mar2018 11 p.m. 58.01 8.34 79.90 0.00 05Mar2018 12 a.m. 58.12 9.24 81.31 0.00 05Mar2018 1 a.m. 59.11 6.69 84.54 0.00 05Mar2018 2 a.m. 58.68 5.84 89.43 0.00 05Mar2018 3 a.m. 66.81 3.73 95.60 0.00 05Mar2018 4 a.m. 68.45 11.38 88.63 0.00 05Mar2018 5 a.m. 68.68 14.39 87.18 0.00 05Mar2018 6 a.m. 68.00 17.35 89.00 0.00 05Mar2018 7 a.m. 69.44 21.93 80.15 4.00 Accuml. Values 1466.06 231.95 1883.58 1006.00 Num. Valid Values 24 24 24 24 Avg. Values 61.09 9.66 78.48 41.92 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 16.16 373.21 78.48 86.50 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.2152 definition: xcompl = 1 - (RELH_avg/100) TdC = 12.4538 definition: TdC = TAIR_avg - ((14.55 + (0.114*TAIR_avg))*xcompl +pow((2.5 + 0.007*TAIR_avg)*xcompl, 3) + (15.9 +0.117*TAIR_avg)*pow(xcompl, 14)) del_lambda1 = 0.6397 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.3603 definition: del_lambda2 = 1 - del_lambda1 Qn = -0.0426 definition: Qn = 0.00714*SRAD_avg + 0.00000526*SRAD_avg*pow(TAIR_avg+17.8, 1.87) +0.00000394*pow(SRAD_avg, 2) - 0.00000000239*pow(SRAD_avg, 2)*pow(TAIR_avg-7.2, 2) - 1.02 es_ea = 3.9162 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 4.9943 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.070 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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